Rock breaker and pulverizer



PATEN'IED FEB. 23, 1904.

D. D. & J. 0; BAILEY. ROCK BREAKER AND PULVERIZER.

APPLICATION FILED JUNE 15, 1903.

N0 MODEL a lnvqnioi i's 7 4 Witnesses:-

UNIT D STATES Patented February 23, 1904.

PATENT OFFICE.

DRURY D. BAILEY AND JAMES O. BAILEY, OF BANNER, CALIFORNIA.

ROCK BREAKER AND PULVERIZER,

SPEGIFIGATION forming part of Letters Patent No. 752,945, dated February 23, 1904.

Application filed June 15,1903. Serial No. 161,553. (No model.)

To all whom it may concern:

Be it known that we, DRURY D. BAILEY and turnable in a shell of such shape/that the upper portion of the spindle, in conjunction with the cylindrical or opposed portion of the shell, first breaks the rock to comparative fineness,

and the. remaining portion of the shell, converging with relation to the convergent lower part of the spindle, completes the crushing. By suitable adjustments of the spindlewith relation to the shell any degree of fineness may be obtained. Suitable feed and discharge connections and adjustments are employed in connection with the apparatus.

Referring to the accompanying drawing, the figure represents a vertical sectional view, partially in elevation, of a rock breaker and pulverizer embodying our invention.

It is the object of our invention to provide an apparatus into which the rock from the orebin may be transferred through a feeding and sampling device, the rock being first broken or crushed to a certain degree of fineness in 1 the upper part of the apparatus and the pulverizing to any degree of fineness being completed in the lower portion.

As shown in the drawings, A is the sub the spindle.

tion A of the shell. The lower portion 3 lies within the lower convergent portion of the shell. This spindle is made as shown, the upper portion diverging downwardly within the shell to'its junction with the lower portion 3, and this forms the largest diameter of From this junction the spindle converges Within the convergent portion A of the shell, the convergence of the spindle being less than that of the shell. The extreme lower end of the spindle very nearly fills the lower end of the shell, so that during its revoluti on the rock or material to be crushed grad ually passes down within this convergent channel and is reduced to as fine a degree as may be desired. The spindle may be made in one or more pieces. If made in two pieces, it may be joined in any suitable manner at'the junction-line between the two conical portions 3 3? or at any other desired point, so that any portion which is subjected to the greatest amount of wear may be replaced whenever wear makes it necessary. This crushing-cone has an extension or spindle a at the lower end, and this is fitted and turnable in a step 5. The step may be supported upon a suitable base or plate, as at 6, and this plate or base may be adjusted either by screws 7 passing through an outwardly-turned flange 8 at the bottom of the shell A, or in any other suitable and well-known manner. By this adjustment the cone 3 may be raised or lowered with relation to the shell, and the convergent channel between it and the shell may be enlarged or diminished to suit any degree of fineness to which it may be desired to reduce the materia 9 is a tripod or support of any suitable description. The upper central portion of this tripod is provided with a bearing 10, and the upper portion of the cone 3, which may be made substantially cylindrical, enters and is guided within this bearing.

11 is a cap fitted and movable within the bearing 10, and it is shown with its lower face made concave and fitting the corresponding convexity of the upper end of the cone 3, as shown at 12.

In theupper part of the bearing 10 is a fixed nut 13, through which passes a regulating- I O0 screw 14:, the lower end of which bears upon the cap 11, and by means of this screw and the regulating-screws 7 at the bottom the double cone may be raised or lowered and properly guided in its revolutions. Power may be applied to revolve this cone through pulley, gearing, or other equivalent device, as shown at 15.

Surrounding the step 5 is a discharge-chute 16, so disposed that the pulverized-material from the space between the cone 3 and the shell A will be delivered into this chute. step 5 may be tapered or converged toward the top so as to leave as little surface as possible at its upper end, and it may be further protected by a sleeve or cap 17, made convex on the upper surface so that any material falling upon it will be delivered clear of the step and will not be allowed to enter, thus protecting the step and spindle 4 from undue wear.

Any suitable form of collar or protecting device may be substituted for that herein described, the object being in any event as far as possible to keep the dust and grit out of the step.

In order to feed the ore or rock to be crushed, we have shown an inclined cylinder 18, mounted and turnable upon bearings, as at 19, and

power may be applied by belt or gearing in any suitable or well-known manner to revolve the cylinder. The upper end of the cylinder is reduced in diameter or has a head with a central opening, as at 20, and into this opening the chute from the ore-bin 21 is adapted to deliver the material, and the revolution of the tube 18 will cause it to gradually travel down the incline. The lower end of the cylinder extends into the upper portion of the shell A, so that the rock is delivered between the cylindrical portion of the shell and the divergent upper cone 3. The revolution of this cone carries the rock gradually down between itself and the cylindrical portion A, and it is continually reduced in size until it passes the junction between the two cones, then it is further reduced in size as it passes down in the convergent channel between the lower cone and the lower conical portion of the shelluntil it is reduced to its finest condition at the point of discharge. It will be seen that the tendency of the rock-pressure between the upper cone and the cylinder will be to press the crusher down and prevent it from being forced up, this portion of the cone counteracting any upward pressure which may take place between the lower convergent portion of the cone andthe corresponding convergent portion of the shell, and this in addition to the adjusting-screws 7 and 14 enables the operator to regulate the position of the crusher with great nicety and without any undue strain or pressure upon the parts.

In order to determine the character of the rock which is being delivered to the crusher, we have shown an opening 22 in the side of The the revoluble feed-chute 18, and this is of such size that at each revolution of the chute a small portion of the passing material will be discharged and may be employed as a sample.

Having thus described our invention, what we claim, and desire to secure by Letters Patent, is-

1. A crusher and pulverizer consisting of a shell, the upper portion of which is cylindrical, the lower portion convergent, a crusher consisting of an upper cone divergent clownwardly and a lower cone convergent downous, a feed-chute connecting with the cylindrical portion of the shell at a point below the top thereof, a step and a spindle forming a journal for the lower cone, and a cap within wardly, the bases of said cones being contiguwhich the upper end of the upper cone is turnable, and screws by which the step and cap are vertically adjustable.

2. The combination in a crusher of a stationary shell comprising a cylindrical upper and a convergent lower portion, a crusher axi-' ally turnable within the shell consisting of an upper portion divergent downwardly and a lower portion convergent downwardly, the bases of the two parts being united, a spindle projecting from the lower cone and a step in which it is supported and turnable, a support having a bearing within which the upper end of the crusher projects, a cap and a screw by which said cap is movable within the bearing, said cap having a concaved socket in which the correspondingly shaped head of the crusher is revoluble, a chute inclosing the spindle and adapted to receive the discharged material, and means protecting the step and preventing the entry of pulverized material.

3. The combination in a crushing and pulverizing apparatus of a double cone, the upper part divergent and the lower part convergent downwardly, an adjustable step and guide at the bottom and top respectively, means by which the cones are revoluble on their bearings, a fixed exterior shell, the upper portion being cylindrical and inclosing the divergent upper cone, the lower portion convergent and inclosing the lower convergent cone, a chute by which material to be crushed is delivered into the upper portion of the shell, a chute surrounding the step into which the pulverized material is delivered from the lower part of the crusher. I

4. The combination in a crusher and pulverizer of the double revoluble cones with inclosing cylindro-conical stationary shell, and means for adjusting the cones within the shell to regulate the discharge at the lower end, a spindle and a step within which the spindle is supported, a chute inclosing the spindle adaptlIO 752,945 &

verizing apparatus, of acone and shell, a, revoluble inclined chute connecting the ore-bin and the upper part of the shell said chute having a; supplemental discharge-opening at one side, and a chute into which the pulverized ore is delivered from the bottom of the apparatus.

In Witness whereof we have hereunto set our hands.

DRURY D. BAILEY. JAMES O, BAILEY. Witnesses:

M. JAcoBs, F. HARRICLT. 

